68038153 has 4 divisors (see below), whose sum is σ = 69877060. Its totient is φ = 66199248.

The previous prime is 68038141. The next prime is 68038177. The reversal of 68038153 is 35183086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35183086 = 2 ⋅17591543.

It can be written as a sum of positive squares in 2 ways, for example, as 60403984 + 7634169 = 7772^2 + 2763^2 .

It is a cyclic number.

It is not a de Polignac number, because 68038153 - 2⁵ = 68038121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68038123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919398 + ... + 919471.

It is an arithmetic number, because the mean of its divisors is an integer number (17469265).

Almost surely, 2^68038153 is an apocalyptic number.

It is an amenable number.

68038153 is a deficient number, since it is larger than the sum of its proper divisors (1838907).

68038153 is a wasteful number, since it uses less digits than its factorization.

68038153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838906.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 68038153 is about 8248.5242922598. The cubic root of 68038153 is about 408.2418328738.

The spelling of 68038153 in words is "sixty-eight million, thirty-eight thousand, one hundred fifty-three".